Malicious PDF — malware analysis report

Static analysis result for SHA-256 c90a946e7d0698aa…

MALICIOUS

PDF

174.8 KB Created: 2017-03-05 21:26:30 UTC Authoring application: Microsoft® Office Word 2007
MD5: c9c9c262379cadb523d95c8a8934d866 SHA-1: 71b211809d212a76eb15f5ac7a9b2b9a1bc842fc SHA-256: c90a946e7d0698aaf405f771ee29bbe51813cf42b20dc27c5af03a8304a7e37b
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The file is identified as a PDF dropper by ClamAV, indicating its primary function is to deliver malicious content. Although no specific exploit or script was detailed in the provided evidence, the 'Pdf.Dropper.Agent-7303049-0' heuristic strongly suggests the document is designed to exploit a PDF vulnerability to download and execute a secondary payload. The benign URLs present do not detract from this assessment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0162

Heuristics 2

  • ClamAV: Pdf.Dropper.Agent-7303049-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7303049-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00016aa6.bin
dd364da8b4a9b02d551103ec7e302a50d4b910bf07f159d50a1b1f0af41f1067		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16AA6 175412 bytes

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